Who said "To think clearly, one must first think dangerously."?

This quote is attributed to Priest, Graham.

To think clearly, one must first think dangerously. - Priest, Graham

"To think clearly, one must first think dangerously."

Priest, Graham Courage

Philosopher-Logician Australian Born 1948 (age 78)

"Contradiction is not inconsistency."

"A contradiction at the level of thought does not mean reality is contradictory."

"Logic is the study of the laws of thought."

"Paraconsistency allows for true contradictions."

"Never let fear stop you from chasing your dreams."

"Courage is being afraid but doing it anyway."

"Sometimes you gotta do what you gotta do."

"Sometimes you have to be the monster to stop the monsters."